Improvement in pumps



4 Sheets-Sheet 1 J. S. ADAMS.

Pumps.

No. 207,700. Patented Sept. 3,1878.

4 Sheets-Sheet; 2.

J. s. ADAMS:

Pumps.

Patented Sept. 3. 1878.

4 SheetsSheet 3 J. S. ADAMS.

Pu mps.

No. 207,700. Patentd Sept. 3.1878.

JEN FE] I? ia cw p i M NPETERS. PHQTQ-LITHOGHAPHER. WASHINGTON, D C.

4 Sheets-Sheet 4'.

J. S. ADAMS.

Pumps.

'Patented Sept. 3, 1878.

UNITED STATES PATENT OFFICE.

JOHN S. ADAMS, OF ELGIN, ILLINOIS.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent N 0. 207,700, datedSeptember 3, 1878 application filed July 27, 1878.

To all whom it may concern:

Be it known that I, JOHN S. ADAMS, of Elgin, in the county of Kane, andin the State of Illinois, have invented certain new and usefulImprovements in Pumps and do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings, making a part of this specification, inwhich 1Figure 1 is a perspective View of my improved pump. Fig. 2 is a likeview of the body of said pump, the cylinder head and dome being removed.Fig. 3 is a vertical central section upon line a" a; of Fig. 1. Fig. 4is a horizontal section upon line :0 m of Fig. 1. Fig. 5 is a verticalsection upon line 00 0c of Fig. 3. Fig. 6 is an elevation of the innerside of one of the cylinder-heads and valve-box. Fig. 7 is a like viewof the outer ends of the cylinder at one end of the pump. Fig. Sis avertical section of one of the valve-boxes upon line 2 z of Fig. 4; andFigs. 9 and 10 are vertical sections upon lines z z and z 2,respectively, of Fig. 6.

Letters of like name and kind refer to like parts in each of thefigures.

The design of my invention is to enable a constant flow of water to beobtained from reciprocating or plunger pumps, and at the same time toequalize the strain thrown upon the motor; to which end It consists,principally, in the construction I of the body of the pump,substantially as and for the purpose hereinafter specified.

It consists, further, in the construction of the cylinder-head andvalve-box, and its combination with the body of the pump, substantiallyas and for the purpose hereinafter shown.

It consists, further, in the means employed for operating the plungersof the pump, substantially as and for the purpose hereinafter set forth.

It consists, finally, in the pump as a whole,

its several parts being constructed and combined to operatesubstantially as and for the purpose hereinafter shown and described.

In the annexed drawings, A and A represent two cylinders, which areparallel with each other and united at their contiguous sides, and areconnected with two similar cylinders, A, by means of a central chamber,B, that is inclosed at its bottom and sides and is open at its top, thearrangement being such as to cause the cylinders at each end to have thesame axis as the corresponding cylinders upon the opposite end, saidparts being cast together.

Upon the lower side of the chamber B is formed a water-passage, O, whichextends along the longitudinal axis of the body described, and has itsopen ends flush with the ends ot the cylinders A, while at the center ofsaid passage is provided an opening,.c, which extends downward and isarranged to receive the end of a supply-pipe.

Upon the upper side of each pair of cylinders A is provided a pipe orwater-passage, D, which at one end communicates with the chamber B,while its opposite outer end is enlarged laterally and vertically, andis flush with the ends of said cylinders.

The ends of each pair of cylinders A and of the pipes O and D areinclosed by a cover or valve-box, E, which has the exterior form shownin Fig. 1, and upon its inner faceisprovided with recesses thatcorrespond in size an d general shape to the open ends of said pipes andcylinders.

From the mouth of the opening (I a passage, 6, extends upward within thebox E and communicates with the upper inner corner of the recess a, thatcoincides with the end of each cylinder A, a flap-valve, F, being placedwithin said recess and arranged to close downward over the upper end ofsaid passage.

Another passage, 0, within the box E extends from the lower side of eachrecess 6 upward to and opens into the recess 6 which coincides with theupper pipe, D, the upper end of said passage 0" being inclosed by meansof a flap-valve, F, that is placed within said recess 0', and closesdownward and outward.

The upper side of the chamber Bis inclosed by means of a dome-shapedcover, G, and at the bottom of said chamber is provided apassage, H,which extends downward, thence laterally outward to the side, and thenceupward, and at its upperend communicates with a pipe, I, that isconnected with said cover G, and from thence extends to any desiredpoint.

' Each cylinder A is provided with a plunger or piston, K, which isconnected with a similar plunger, K, in the opposite coinciding cylinderA by means of a rod, L, that is secured to and extends between saidplungers, At the longitudinal center of each piston-rod L is a verticalenlargement, Z, within the outer face of which is formed a verticalright-angled groove, i, which receives and contains a round stud orfriction-wheel, m,that projects outward from the face of a bevel-gearwheel, M, which is journaled upon the inner face of the side wall of thechamber B. I

The axes of the cylindersA and wheel Mhave the same plane vertically,and said wheel is placed midway between the inner ends of saidcylinders, so that when the former is rotated its stud orfriction-wheelm will describe a circle, and will move the rod L andpistons K back and forth, one of said pistons being moved toward, andthe other piston moved simultaneously from, the outer ends of theircylinders.

Motion is imparted to the gear-wheels M by means of a bevel-gear wheel,N, which is secured upon the lower end of a shaft, 0, that passesdownward through a stuffing-box, g, in the cover G, said gear-wh eel Nbeing arranged to rotate in a horizontal plane and to mesh with saidgears M from above. The gears M are adjusted so as to bring theircrank-studs m one-fourth or oneei ghth of a revolution apart, and whenthe shaft 0 is rotated the pistons or plungers K, upon opposite sides ofthe pump, reach the limit of their motion at different times, and thusequalize the power required for their operation, and lessen the shockwhich would be caused if said pistons reached their limit of motion atthe same time.

WVhen the pump is in motion each piston, as it moves inward, draws waterthrough the pipe 0, passage 6, and valve F into the cylinder A, whileupon the outward movement of said piston the water is expelled throughthe passage 6, valve F, and passage D into the chamber 13, from. whenceit escapes through the passage H into the delivery-pipe I.

The dome G forms an air-chamber for the pump; and in order that air maynot escape through the stuffing-box g, said box is extended downward tothe upper side of the gear-wheel N. A small opening, I), formed betweenthe upper edge of the side wall of the chamber 13 and said cover G andextending into the side pipe I, enables air to escape from said chamberand the latter to fill with water.

It will be seen that the openings through which water is discharged fromeach cylinder A and from the chamber B are at the bottom,by whicharrangement all sand which may enter either will be readily expelled.

In order that the journal or pivotal bearing M for the vgear-wheel M maybe placed in p0 sition without passing through the walls of the sidepipe H, said pipe at such point is made annular and passes around saidbearing.

In consequence of the arrangement of the passages and valves within thevalve-box or cylinder-head E, said valves are all exposed when said headis removed, and are easily and quickly accessible for the purpose ofrepairs, while by removing the cover Gr all of the operative mechanismof the pump is exposed, and can be readily removed and replaced.

In consequence of the construction of the pump but three joints are tobe packed, and by breaking said joints each portion of the interior isexposed and accessible, and all of its operative mechanism may be takenout without rendering necessary the removal of said pump from itssupports.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1s 1. The hereinbeforedescribed pumpbody, in which thecylinders A, central chamber B, supply-pipe (J, passages D,and'exit-passage H are combined and relatively arranged, substantiallyas and for the purpose specified.

2. The combined cylinder-head and valvebox E, provided with the recessesc and e, water-passages e and e", and valves F and F, in combinationwith the body of the pump, substantially as and for the purpose shown.

3. In combination with the plungers K, the rods L, having the verticalgrooves l at their longitudinal centers, the gear-wheels M, providedwith the studs m, the gear-wheel N, and the operating-shaft O,substantially as and for the purpose set forth.

4.. The hereinbefore described pump, in which the cylinders A, chamberB, supply-pipe C, passagesD, valve-boxesE, provided with the passages eand c and valves F and F, the cover G, the discharge-pipe H and I, thepistons K, the rods 'L, having vertical central grooves Z, thegear-wheels M, provided with crank-studs m, the gearwheel N, and theshaft 0 are constructed and combined to operate in the manner and forthe purpose shown.

I11 testimony that I claim the foregoing I have hereunto set my handthis 23d day of July, 1878. I

JOHN S. ADAMS.

Witnesses:

E. D. WALDRON, W. K. HOAGLAND.

